Linea HS Multifield Camera
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Flat Field Control Feature Description
Display Name
Feature
Description
Device
Version
& View
Flat Field Correction Mode
flatfieldCorrectionMode
1.00
Off
Off
FPN and PRNU correction
disabled.
Beginner
On
On
FPN and PRNU correction
enabled.
DFNC
Clear Coefficents
flatfieldCalibrationClearCoefficient
Reset all FPN to 0 and all flat field
coefficients to 1.
Calibration Algorithm
flatfieldCorrectionAlgorithm
Selection between four different
flat field algorithms.
1.00
Beginner
DFNC
Peak
Peak
Calculation of PRNU coefficients
to bring all pixels to the peak.
Peak, Image Filtered
Peak, Image Filtered
A low pass filter is applied to the
average line values before
calculating the coefficients. Use
this algorithm if the calibration
target is not uniformly white or if it
is not possible to defocus the
image. Because of the low pass
filter, this algorithm is not able to
correct pixel-to-pixel variations
and so it is preferable to use the
“Peak” algorithm.
Set Target
Set Target
Calculation of PRNU coefficients
to bring all pixels to the target
value.
Set Target, Image Filtered
Set Target, Image Filtered
A low pass filter is applied to the
average line values before
calculating the coefficients. Use
this algorithm if the calibration
target is not uniformly white or if it
is not possible to defocus the
image. Because of the low pass
filter this algorithm is not able to
correct pixel-to-pixel variations
and so it is preferable to use the
“Target” algorithm.
Flat Field Calibration Target
flatfieldCalibrationTarget
Sets the target value for the
“Calibrate PRNU” feature.
Flat Field Calibration Offset
X
flatfieldCalibrationROIOffsetX
Set the starting point of a region of
interest where a flat field
calibration will be performed
1.00
Beginner
DFNC
Flat Field Calibration Width
flatfieldCalibrationROIWidth
Sets the width of the region of
interest where a flat field
calibration will be performed
1.00
Beginner
DFNC
Calibrate FPN
flatfieldCalibrationFPN
Initiates the FPN calibration
process
1.00
Beginner
DFNC